Easy insert finger sensor for transmission based spectroscopy sensor

INCORPORATION BY REFERENCE TO ANY PRIORITY APPLICATIONS

0001This application claims the priority benefit of U.S. Application No. 62/662,142, filed Apr. 24, 2018, and U.S. Application No. 62/680,170, filed Jun. 4, 2018, each of which are hereby incorporated by reference in its entirety herein.

0002Any and all applications for which a foreign or domestic priority claim is identified in the Application Data Sheet as filed with the present application are hereby incorporated by reference under 37 C.F.R. § 1.57.

BACKGROUND

Field of Use

0003The present disclosure relates generally to the field of patient monitoring devices.

Description of Related Art

0004Physiological monitors measure many important parameters useful in providing care to a patient. For example, one such physiological monitor is a pulse oximeter. Many physiological monitoring devices that exist on the market utilize a reusable alligator clip type sensor. These kinds of sensors are usually placed on a finger to measure noninvasive physiological parameters and biomarkers through transmission spectroscopy. A user's finger is placed into an alligator clip sensor and one or more light emitters emit light into the tissue of the patient and one or more light detectors detect the attenuated light after transmission through or reflection from the tissue.

SUMMARY

0005The present disclosure provides a physiological monitoring device. Examples of the present disclosure relate to systems that allow an easy insert finger sensor. In particular, but without limitation, embodiments disclosed herein relate to spectroscopy technologies.

0006A physiological finger sensor system may include an ergonomic interface, where the ergonomic interface is shaped into a natural curve of a user's hand and a finger.

0007The finger sensor further can include a pivot release stand. The system can include a pin and the pin can include a coil spring. The pivot release stand can be located at the deepest end of the first and second soft pads. The ergonomic interface can include a display. The system can include an algorithm board. The system can include a processor. The system can include a communication board. The system can include a battery. The algorithm board can include RainbowSET® spectroscopy algorithms that can measure at least nine parameters from transmission based spectroscopy. The interface can be a rounded shape.

0008The finger sensor can be at a maximum opening when a finger is not inserted. The finger sensor can be at a closed position when a finger is not inserted. The finger sensor can be closed prior to a finger insertion. The finger sensor can close once a finger is fully inserted and when the finger contacts the pivot release stand. The pivot release stand can be on a spring system that can be able to return to an original position when a user's finger is removed out of the sensor and thus leaving the sensor in the most open position while waiting for the next finger insertion.

0009The LED emitter can transmit at least a signal through a finger to the detector. The processor can calculate data based upon signals collected by the detector.

0010The finger sensor can be a kickstand sensor. The finger sensor can be a bi-directional kickstand sensor. The finger sensor can be a scissor over sensor. The finger sensor can include: a top portion, where the top portion can have a first soft pad and at least one light emitter; and a bottom portion, where the bottom portion can have a second soft pad and at least one detector. The finger sensor can include a bottom portion, wherein the bottom portion can have a first soft pad and at least one light emitter; and a top portion, where the top portion can have a second soft pad and at least one detector. The finger sensor can be a reflectance-based sensor. The finger sensor can be a transmission-based sensor and a reflectance-based sensor.

0011A finger sensor system can include: a first housing component that can include a first sensor and a first finger placement component configured to support the first sensor and secure a first finger near the first sensor; a second housing component that can include a second sensor and a second finger placement component configured to support the second sensor and secure a second finger near the second sensor; and a display component.

0012The first housing component can be disposed on the second housing component.

0013The first sensor can be a spectroscopic sensor configured to measure Raman emissions. The second sensor can be an optical sensor configured to measure pulse oximetry.

0014The first finger placement component can include a sensor cover and an internal clasp. The internal clasp can include a hinged component configured to support the first finger. The sensor cover can include the first sensor. The internal clasp can include a spring configured to push the hinged component towards the sensor cover.

0015The first finger placement component can include a nail lock configured to secure a fingernail of the first finger. The nail lock can be configured to mate with a nail guide. The nail guide can be secured onto the fingernail. The nail guide can be secured using an adhesive.

0016The display component can be configured to display data associated with at least one physiological parameter. The at least one physiological parameter can include glucose. The data can include the physiological parameter. The data can include a graphical representation of variation in the physiological parameter over time.

0017The third housing component can be configured to support at least one power source for the first sensor and the second sensor.

0018A finger sensor system can include: a first housing component that can include a first sensor and a first finger placement component configured to support the first sensor and secure a first finger near the first sensor; and a display component.

0019The finger sensor system can include a second housing component comprising a second sensor and a second finger placement component configured to support the second sensor and secure a second finger near the second sensor.

0020The finger sensor system can include a third housing component comprising one or more hardware processors.

0021A finger sensor system can include: one or more modular components that can include at least one finger well and at least one sensor adjacent to the at least one finger well.

0022The finger well can be configured to be embedded in a central portion of the one or more modular components. The finger well can be configured to be adjacent to a central portion of the one or more modular components.

0023The finger well can include at least one pressure component. The at least one pressure component can include a spring configured to push the at least one sensor towards an interior of the finger well. The at least one pressure component can include a clasp configured to apply pressure to a measurement site of a patient.

0024The finger sensor system can include an alignment lens configured to be disposed between a finger disposed in the finger well and the at least one sensor. The alignment lens can be a flexible material. The alignment lens can be silicone.

BRIEF DESCRIPTION OF THE DRAWINGS

<figref idref="DRAWINGS">FIG. <b>1</b></figref> illustrates a top view of an example device.

<figref idref="DRAWINGS">FIG. <b>2</b></figref> shows a cross-section of the device of <figref idref="DRAWINGS">FIG. <b>1</b></figref>.

<figref idref="DRAWINGS">FIG. <b>3</b></figref> shows another detailed cross section of the device of <figref idref="DRAWINGS">FIG. <b>1</b></figref>.

<figref idref="DRAWINGS">FIGS. <b>4</b>A and <b>4</b>B</figref> show how a pivot kickstand sensor can be used on a device.

<figref idref="DRAWINGS">FIGS. <b>5</b>A and <b>5</b>B</figref> show how a bi-directional kickstand sensor can be used on a device.

<figref idref="DRAWINGS">FIGS. <b>6</b>A and <b>6</b>B</figref> show how a scissor over sensor can be used on a device.

<figref idref="DRAWINGS">FIGS. <b>7</b>A-<b>7</b>E</figref> illustrate perspective views of an example multi-sensor device.

<figref idref="DRAWINGS">FIG. <b>8</b>A</figref> illustrates an example multi-sensor device with separable sensor units.

<figref idref="DRAWINGS">FIG. <b>8</b>B</figref> illustrates an exploded view of the multi-sensor device of <figref idref="DRAWINGS">FIG. <b>8</b>A</figref>.

<figref idref="DRAWINGS">FIGS. <b>9</b> and <b>10</b></figref> shows cross-sectional views of an example multi-sensor device.

<figref idref="DRAWINGS">FIGS. <b>11</b>A and <b>11</b>B</figref> show different cross-sectional views of an example device with finger placement component for a Raman sensor

<figref idref="DRAWINGS">FIG. <b>12</b>A</figref> shows an example nail guide for use with an example device.

<figref idref="DRAWINGS">FIG. <b>12</b>B</figref> shows an example nail guide lock for use with an example device.

<figref idref="DRAWINGS">FIGS. <b>13</b>A and <b>13</b>B</figref> illustrate example display modes of an example device.

<figref idref="DRAWINGS">FIGS. <b>14</b>A-<b>14</b>D</figref> illustrate perspective views of an example device that allows for a tissue site to sit inside a center housing portion of the device.

<figref idref="DRAWINGS">FIGS. <b>15</b>A and <b>15</b>B</figref> illustrate perspective views of an example device that allows for a tissue site to sit adjacent to a center housing portion of the device.

<figref idref="DRAWINGS">FIGS. <b>16</b>A-<b>16</b>C</figref> show example sensor pressure components of the device.

DETAILED DESCRIPTION

0000Overview

0042Examples disclosed herein relate to systems that allow an easy insert finger physiological sensor. These systems can be used on transmission-based spectroscopy technologies or reflectance-based spectroscopy technologies. Currently, many devices on the market place an alligator clip type sensor on a finger to measure parameters and biomarkers noninvasively. Additional challenges exist with current pulse oximetry and co-oximetry noninvasive sensors. Current pulse oximetry and co-oximetry noninvasive sensors require a user to place his or her finger in a clothespin style clip. This action can require both hands of the patient or a clinician to ensure accurate placement. Additionally, placement accuracy of the emitter and detector windows relative to the patient's measurement site can be difficult to achieve with an alligator clip type sensor. Placement of the windows is important in obtaining a value when measuring. Systems and methods described herein seek to improve the placement of transmission and reflectance based spectroscopic sensors at a patient tissue site. For example, in the case of a finger, a device that allows for consistent and ergonomic finger placement with relation to the sensor can allow for more consistent sensor measurements due to ease of use and increased precision of tissue site placement. Systems and methods described herein relate to an object that the hand is placed onto, around or within. The present disclosure provides an inviting ergonomic experience for a user.

0000Components of an Example Sensor Device

0043<figref idref="DRAWINGS">FIG. <b>1</b></figref> shows a device <b>100</b>. The device <b>100</b> can have a rounded form structured shape <b>110</b> with a natural curve so as to be inviting for a user's hand. The device <b>100</b> can embody all required hardware to measure one or multiple parameters directly from reflectance-based or transmission-based spectroscopy. The device <b>100</b> can have a finger sensor component <b>120</b> and a display <b>130</b>. The device <b>100</b> can have a structure in the back such as a ring or finger/hand anchor to prevent the user from dropping the device <b>100</b>. The device <b>100</b> can have a physical port, such as a USB port, to connect with smart phones, computers, tablets, or other devices to transmit data. The device <b>100</b> can also wirelessly transmit data. The device can have a processor to further process collected data. The device <b>100</b> can have a rechargeable battery port, USB charging, wireless charging components (such as but not limited to Qi), or a direct power input port. The device <b>100</b> can have audio features such as a speaker, microphone, audio output, and volume adjustment. The device <b>100</b> can have display brightness or contrast features. The display <b>130</b> can be a touchscreen. The display <b>130</b> can also be an integrated button. The display <b>130</b> can have capacitance or projected capacitance abilities to respond to touch inputs. The device <b>100</b> can have a screen lock feature. The device <b>100</b> can be made out of drop resistant material. The display can be made out of scratch resistant or shatter resistant material. The device <b>100</b> can come in different sizes for adult or child use. The display <b>130</b> can flash different colors to indicate a status of the user.

0044<figref idref="DRAWINGS">FIG. <b>2</b></figref> shows a cross-section of the device <b>200</b>. A cross section of the form structured shape <b>210</b> and a cross section of the finger sensor <b>220</b> are presented. The finger sensor <b>220</b> can be a modular attachment to the device <b>200</b>. The finger sensor <b>220</b> can have at least one emitter <b>230</b> and at least one detector <b>240</b>. The emitter <b>230</b> can be an LED. The detector <b>240</b> can be in the inner most location of the finger sensor. The finger sensor <b>220</b> can have two soft pads <b>250</b>, <b>260</b> for the user's finger when the finger is inserted.

0045The two halves of the finger sensor can be connected with a pivot-release stand. The pivot release stand can have a pin and coil spring that places a specific amount of force on to the finger being measured. The pivot release stand can be placed at the deepest end of the sensor's soft pads <b>250</b>, <b>260</b>. A momentum-based spring can apply pressure from either the top or bottom sensor pads. A momentum-based spring can also be used in a mechanical reaction in response to a user inserting his or her finger. An electronic trigger can also be used in response to a user inserting his or her finger into the sensor portion. The pivot release stand can be in an open position prior to inserting a finger. The pivot release stand can be in a closed position prior to inserting a finger. The pivot release stand can be opened and closed by a lever, switch, or button. When the finger is removed, the pivot release stand can return to its original position and can open the sensor.

0046A spring kickstand <b>270</b> can be placed in the finger sensor <b>220</b>. Prior to inserting a finger, the spring kickstand <b>270</b> of the finger sensor <b>220</b> can be at a maximum opening. The spring kickstand <b>270</b> of the finger sensor <b>220</b> can also be in a closed position prior to finger insertion. The finger sensor can also be in connection with a lever, switch, or button to open the finger sensor <b>220</b> prior to finger insertion. When a finger is inserted and pushes or contacts the spring kickstand <b>270</b>, the spring kickstand can become under tension and close the finger sensor <b>220</b>. Optionally, a user can use a different finger to manipulate the spring kickstand <b>270</b> to cause the finger sensor <b>220</b> to open and close. A switch, button, or lever can be located externally and be in connection with the spring kickstand <b>270</b>. The finger sensor can also have dual entry points for two fingers or an opposite entry point for another finger. The finger sensor can also be located on the back of the device <b>200</b> or on the front of the device <b>200</b>.

0047<figref idref="DRAWINGS">FIG. <b>3</b></figref> shows a detailed example of a cross section of the form structured shape <b>310</b> or the device <b>300</b>. The device <b>300</b> can contain a display <b>320</b>. The device <b>300</b> can contain an algorithm board <b>330</b>. The device <b>300</b> can contain a communication board <b>340</b>. The device <b>300</b> can have a battery <b>350</b>. The algorithm board <b>330</b> can use algorithms such as the RainbowSET®, available from Masimo corporation of Irvine, CA, or other algorithms to process the data collected by the detector. The battery <b>350</b> can be a lithium battery. The battery <b>350</b> can be rechargeable. The battery <b>350</b> can have wireless or wire based charging. The components of the device <b>300</b> described herein can be modular.

0000Operation of Example Sensor Device

0048<figref idref="DRAWINGS">FIGS. <b>4</b>A and <b>4</b>B</figref> shows a pivot kickstand sensor <b>420</b> that can be used on a device <b>400</b>. <figref idref="DRAWINGS">FIG. <b>4</b>A</figref> and <figref idref="DRAWINGS">FIG. <b>4</b>B</figref> shows a user can use his or her finger <b>440</b> to use the device <b>400</b>. As shown in <figref idref="DRAWINGS">FIG. <b>4</b>A</figref>, the pivot kickstand sensor <b>420</b> can be opened to a maximum size prior to finger insertion. The pivot kickstand sensor <b>420</b> has a kickstand <b>450</b> that can be upright prior to finger insertion. The pivot kickstand sensor top can have a spring-loaded rotational pivot <b>460</b>.

0049As shown in <figref idref="DRAWINGS">FIG. <b>4</b>B</figref>, the pivot kickstand <b>420</b> can close once the finger is inserted and hits the kickstand <b>450</b> or pivot release stand. The user can hold the device <b>400</b> based on the contours of the form structured shape <b>410</b>. When a user's finger <b>440</b> enters the pivot kickstand sensor <b>420</b>, the user can feel the walls of the pivot-release stand press down. This movement against the pivot release stand wall can release the downward clamping force of the pivot kickstand sensor <b>420</b>. This pivot release stand can also be on a spring system. The pivot kickstand sensor <b>420</b> can be closed once the finger <b>440</b> is inserted and hits the kickstand <b>450</b>. When a user's finger <b>440</b> is removed from the pivot kickstand sensor <b>420</b>, the kickstand <b>450</b> can engage back into place and can leave the kickstand pivot kickstand sensor <b>420</b> in an open position while waiting for the next finger insertion. The display <b>430</b> can show the data that the detector collects from the emitters, instructions for the user, commands to the user, or other indications as described herein.

0050<figref idref="DRAWINGS">FIGS. <b>5</b>A and <b>5</b>B</figref> shows a bi-directional kickstand sensor <b>520</b> can be used on a device <b>500</b>. <figref idref="DRAWINGS">FIG. <b>5</b>A</figref> and <figref idref="DRAWINGS">FIG. <b>5</b>B</figref> shows a user can use his or her finger <b>540</b> to use the device <b>500</b>. The bi-directional kickstand sensor <b>520</b> allows either hand to operate the device <b>500</b>. As shown in <figref idref="DRAWINGS">FIG. <b>5</b>A</figref>, momentum springs <b>522</b> can be in a loaded position prior to finger <b>540</b> insertion. The finger kickstand <b>550</b> can also be in an upright position prior to finger insertion. A pivot with a rotational spring <b>560</b> can also be used. As shown in <figref idref="DRAWINGS">FIG. <b>5</b>A</figref>, the bi-directional kickstand sensor <b>520</b> can be opened to a maximum size prior to finger insertion. The user places his or her finger <b>540</b> into the kickstand bi-directional kickstand sensor <b>520</b> sheath until a clicking sound or other audible signal can be made. The sound or audible signal can notify the user of proper finger <b>540</b> placement. A pivot notch can create the clicking sound. Alternatively, the device's pivot notch can also provide a tactile feedback system to signal to the user that the finger is placed properly.

0051As shown in <figref idref="DRAWINGS">FIG. <b>5</b>B</figref>, once the finger is inserted and hits the finger kickstand <b>550</b> or pivot release stand, the bi-directional kickstand sensor <b>520</b> can close. The user can hold the device <b>500</b> based on the contours of the form structured shape <b>510</b>. When a user's finger <b>540</b> enters the bi-directional kickstand sensor <b>520</b>, the finger kickstand can be held down by the finger <b>540</b>. The user can also feel the top pad <b>570</b> extend to press against the finger <b>540</b>. When a user's finger <b>540</b> is removed from the bi-directional kickstand sensor <b>520</b>, the finger kickstand <b>550</b> can engage back into place and can leave the sensor in an open position to wait for the next finger insertion. The display <b>530</b> can show the data that the detector collects from the emitters, instructions for the user, commands to the user, or other indications as described herein.

0052<figref idref="DRAWINGS">FIGS. <b>6</b>A and <b>6</b>B</figref> shows a scissor over sensor <b>620</b> can be used on a device <b>600</b>. <figref idref="DRAWINGS">FIG. <b>6</b>A</figref> and <figref idref="DRAWINGS">FIG. <b>6</b>B</figref> shows a user can use his or her finger <b>640</b> to use the device <b>600</b>. As shown in <figref idref="DRAWINGS">FIG. <b>6</b>A</figref>, the scissor over sensor <b>620</b> has a bottom pad <b>650</b>. Prior to a finger <b>640</b> insertion, the scissor over sensor <b>620</b> can be in an open position. When a user places his or her finger <b>640</b> on the bottom pad <b>650</b>, the pivots <b>660</b> of the scissor over sensor <b>620</b> activate to slide the scissor over sensor <b>620</b> over the finger <b>640</b>. The user can hold the device <b>600</b> based on the contours of the form structured shape <b>610</b>.

0053As shown in <figref idref="DRAWINGS">FIG. <b>6</b>B</figref>, the scissor over sensor <b>620</b> can close while the user is pressing on the bottom pad <b>650</b>. When the user removes the finger <b>640</b>, the scissor over sensor <b>620</b> can return to the original open position. The display <b>630</b> can show the data that the detector collects from the emitters, instructions for the user, commands to the user, or other indications as described herein.

0000Example Multi-Sensor Device

0054<figref idref="DRAWINGS">FIGS. <b>7</b>A-<b>7</b>E</figref> show perspective views of an example multi-sensor device <b>700</b>. The device <b>700</b> can include multiple different types of sensors. For example, the device <b>700</b> can include components relating to pulse-oximetry sensors and/or spectroscopic sensors capable of detecting Raman emissions. The device <b>700</b> can embody all required hardware to measure one or multiple parameters directly from the sensors. The device <b>700</b> can have one or more sensors for one or more fingers on a user's hand. For example, as illustrated in <figref idref="DRAWINGS">FIG. <b>7</b>A</figref>, a device <b>700</b> can have two sensors <b>710</b><i>a</i>, <b>710</b><i>b</i>. The device <b>700</b> can have a first sensor in a first finger placement component <b>710</b><i>a </i>capable of measuring a physiological parameter from a tissue site on an index finger <b>720</b><i>a </i>and a second sensor in a second finger placement component <b>710</b><i>b </i>capable of measuring a physiological parameter from a tissue site on a ring finger <b>720</b><i>b. </i>

0055As illustrated in <figref idref="DRAWINGS">FIGS. <b>7</b>B and <b>7</b>C</figref>, the device <b>700</b> can have a display <b>730</b> capable of displaying data relating to parameters measured by the system <b>700</b>. For example, as described below, the display <b>730</b> can be capable of displaying a parameter value and/or displaying a graphical representation of historical parameter values.

0056As illustrated in <figref idref="DRAWINGS">FIGS. <b>7</b>D and <b>7</b>E</figref>, the device <b>700</b> can include a housing <b>740</b>. The housing <b>740</b> can include one or more case components <b>750</b> to hold hardware components in place within the device <b>700</b>. The housing <b>740</b> can include one or more finger placement components <b>710</b><i>a</i>, <b>710</b><i>b </i>that can contain sensors (not shown). The finger placement components <b>710</b><i>a</i>, <b>710</b><i>b </i>can include finger placement components, as discussed in further detail below, that can be capable of aiding finger positioning in relation to one or more sensors (not shown) within the device <b>700</b>. The finger positioning components <b>710</b><i>a</i>, <b>710</b><i>b </i>can be unique to a sensor type or the same for multiple different sensors. For example, a Raman sensor can require consistent placement of a user's fingernail in relation to the sensor. Thus, finger positioning components for a Raman sensor can be capable of holding a fingernail in place. In another example, a pulse oximetry sensor may not require as similarly consistent a placement as a Raman sensor. Thus, finger positioning components for a pulse oximetry sensor can be different from the finger positioning components for a Raman sensor.

0000Separable Units

0057<figref idref="DRAWINGS">FIG. <b>8</b>A</figref> shows a view of an example multi-sensor device <b>800</b> with separable units. The device <b>800</b> can include multiple units (for example, <b>810</b><i>a</i>, <b>810</b><i>b</i>, <b>810</b><i>c</i>) that can contain sensor and other hardware components and a display unit <b>820</b>. For example, a device <b>800</b> can include a pulse oximetry unit <b>810</b><i>a</i>, a Raman unit <b>810</b><i>b</i>, and a processing unit <b>810</b><i>c</i>. However, more or fewer units are possible. Unit <b>810</b><i>a </i>can include a pulse oximetry sensor and associated hardware components. Unit <b>810</b><i>b </i>can include a Raman sensor and associated hardware components. Unit <b>810</b><i>c </i>can include other hardware components such as one or more hardware processors and power and battery components. Any unit can be a part of another unit or can be separate and the hardware components can be switched or mixed within each unit. For example, the display unit <b>820</b> can be a part of a unit <b>810</b><i>a </i>or a separate component. Each unit can include one or more electrical connections so as to operate the units with a single processing unit or a single power source. Additionally or alternatively, each unit can be independently operable.

0058The units (for example, <b>810</b><i>a</i>, <b>810</b><i>b</i>, <b>810</b><i>c</i>) can be separated or combined in any suitable order combination within a device <b>800</b>. The units can be stackable. For example, the device can include the display unit <b>820</b> placed onto a hardware unit <b>810</b><i>c</i>. The hardware unit <b>810</b><i>c </i>can be placed onto the pulse oximetry unit <b>810</b><i>a</i>. The pulse oximetry unit <b>810</b><i>a </i>can be placed onto the Raman unit <b>810</b><i>b</i>. It will be understood that other combinations of units are possible.

0059The units (for example, <b>810</b><i>a</i>, <b>810</b><i>b</i>, <b>810</b><i>c</i>) can secured in place through any suitable securing mechanism. For example, units <b>810</b><i>a</i>, <b>810</b><i>b</i>, and <b>810</b><i>c </i>can include at least one interlocking mechanism <b>830</b>, such as screw threads, clasps, notches or any other suitable interlocking mechanism. The interlocking mechanism <b>830</b> can also protect interior components of the units from outside damage, such as water damage or other sources of damage to electronic components.

0000Finger Placement

0060As shown in <figref idref="DRAWINGS">FIG. <b>7</b>A</figref>, a device <b>700</b> can have multiple finger placement components <b>710</b><i>a</i>, <b>710</b><i>b </i>capable of holding a sensor for measuring tissue sites on multiple fingers <b>720</b><i>a</i>, <b>720</b><i>b</i>. The finger placement components can be oriented in such a way as to allow for multiple fingers on the same hand to be simultaneously measured by the sensors in device <b>700</b>. For example, the finger placement components (for example, <b>710</b><i>a </i>and <b>710</b><i>b</i>) can be oriented on the device <b>700</b> such that there is a sufficient amount of room for a user's fingers to rest comfortably. Each finger placement component can be capable of receiving a finger. A finger placement component can be capable of receiving more than one type of finger. Additionally or alternatively, in other examples, a finger placement component can be capable of receiving only one type of finger. For example, a finger placement component <b>710</b><i>a </i>can be capable of receive finger <b>720</b><i>a </i>or <b>720</b><i>b</i>. In another example, a finger placement component <b>710</b><i>b </i>can only receive finger <b>720</b><i>b. </i>

0000Example Finger Placement Components

0061<figref idref="DRAWINGS">FIGS. <b>9</b> and <b>10</b></figref> illustrate cross-sectional views of example finger placement in an example multi-sensor device <b>900</b>. <figref idref="DRAWINGS">FIG. <b>9</b></figref> illustrates a cross-sectional view of an example pulse-oximetry unit <b>950</b>. As shown in <figref idref="DRAWINGS">FIG. <b>9</b></figref>, a pulse oximetry unit <b>950</b> can include a finger placement component <b>960</b>. The finger placement component <b>960</b> can be composed of a single or multiple parts. For example, the finger placement component <b>960</b> can have a cover component <b>962</b>. The cover component <b>962</b> can be configured to enclose or cover (partially or entirely) a tissue site. The finger placement component <b>920</b> can be of sufficient length, width, and depth to receive a human digit <b>970</b>, such as an index finger, at a location close to a sensor (not shown) such that a tissue site on the human digit can be measured by the sensor.

0062<figref idref="DRAWINGS">FIG. <b>10</b></figref> illustrates a cross-sectional view and <figref idref="DRAWINGS">FIGS. <b>11</b>A and <b>11</b>B</figref> illustrate example perspective views of an example Raman sensor unit <b>910</b> with finger placement component <b>920</b>. As shown in <figref idref="DRAWINGS">FIG. <b>10</b></figref>, a Raman sensor unit <b>910</b> can include a finger placement component <b>920</b>. The finger placement component <b>920</b> can be composed of a single or multiple parts. For example, the finger placement component <b>920</b> can have a hinged component <b>922</b> designed to approximately conform to the shape of the finger <b>930</b>. The hinged component <b>922</b> can be connected to a hinge <b>928</b>. The hinge <b>928</b> can be part of a spring mechanism capable of pushing the finger <b>930</b> towards a sensor or a cover component <b>924</b>. For example, the finger placement component <b>920</b> can additionally or alternatively have a cover component <b>924</b>. The cover component <b>924</b> can house a sensor. The spring mechanism can push the finger <b>930</b> towards to sensor in the cover component <b>924</b>. The cover component <b>924</b> can be configured to enclose or cover (partially or entirely) a tissue site. The finger placement component <b>920</b> can be of sufficient length, width, and depth to receive a human digit <b>930</b>, such as a ring finger, at a location close to a sensor (not shown) such that a tissue site on the human digit can be measured by the sensor. The finger placement component <b>920</b> can include a finger stop <b>926</b> to prevent the finger <b>930</b> from misplacing relative to a sensor within the finger placement component <b>920</b>.

0063<figref idref="DRAWINGS">FIGS. <b>12</b>A and <b>12</b>B</figref> illustrate example securing components <b>1200</b> that can be part of or used in conjunction with an example Raman sensor unit <b>910</b>. <figref idref="DRAWINGS">FIG. <b>12</b>A</figref> shows an example nail guide <b>1210</b>. The example nail guide <b>1210</b> can be placed onto a finger <b>930</b>. For example, the nail guide <b>1210</b> can be placed onto a fingernail <b>935</b> of a finger <b>930</b>. As shown in <figref idref="DRAWINGS">FIG. <b>12</b>B</figref>, the nail guide <b>1210</b> can mate with a nail lock <b>1220</b>. The nail guide <b>1210</b> can mate with the nail lock <b>1220</b> through a variety of suitable mechanisms. For example, the nail guide <b>1210</b> can mate with the nail lock <b>1220</b> with a snap-fit, a clasp, a sliding-fit or other suitable mechanism. The nail guide <b>1210</b> and the nail lock <b>1220</b> can secure the finger <b>930</b> in place at the fingernail <b>935</b> during a physiological measurement. For example, when the nail guide <b>1210</b> is in place, the nail lock <b>1220</b> can prevent the finger <b>930</b> from sliding or rotating side to side or back and forth.

0064The nail guide <b>1210</b> can be secured using an adhesive. The adhesive can allow the nail guide <b>1210</b> to be placed onto a finger <b>930</b> for an extended period of time. For example, the nail guide <b>1210</b> can be adhered to the nail <b>935</b> for a period of 1 day to 1 week. The benefit of adhering the nail guide <b>1210</b> for an extended period of time is that it allows for more consistent placement of the finger in the device <b>900</b> over that period. For example, a user can perform multiple non-invasive measurements of a physiological parameter over the period of a day. If the nail guide <b>1210</b> is secured in the same spot of the nail <b>935</b> for that period, then the measurements of the physiological parameter will be of approximately the same tissue site due to the finger <b>930</b> being secure in substantially the same way while the nail guide <b>1210</b> is secured in the same spot.

0065While the systems and methods mentioned above can be described in reference to a particular sensor or sensor unit, the components can be used for any type of sensor, sensor unit, or finger placement device or mechanism.

0000Example Display Modes

0066<figref idref="DRAWINGS">FIGS. <b>13</b>A and <b>13</b>B</figref> illustrate example display modes of a device <b>1300</b>. As illustrated in <figref idref="DRAWINGS">FIG. <b>13</b>A</figref>, a device <b>1300</b> can display a physiological parameter value <b>1310</b>. For example, a device <b>1300</b> can be capable of measuring blood glucose. The device <b>1300</b> can have a glucometer mode, where it displays a blood glucose value on the display <b>1330</b>. The units of measurement, size of text, and other relevant display settings can be customizable by the user.

0067As illustrated in <figref idref="DRAWINGS">FIG. <b>13</b>B</figref>, the device <b>1300</b> can have a parameter variation display mode. For example, a user can make measurements of a physiological parameter using the device <b>1300</b> over a period of time. The device can access those values and display a graphical representation <b>1320</b> of those values on a display <b>1330</b>. For example, where the physiological parameter is blood glucose, the device can display a graph of blood glucose values over time. The period of time over which a graph can display data and other relevant display settings can be customizable by the user. Additionally or alternatively, the device <b>1300</b> can display data <b>1340</b> associated with a physiological parameter measurement. For example, the device <b>1300</b> can measure blood glucose. The device <b>1300</b> can display whether the currently measurement blood glucose is within a predetermined range. For example, the device <b>1300</b> can display that the current blood glucose measurement is in a moderate range.

0000Alternative Configurations

0068<figref idref="DRAWINGS">FIGS. <b>14</b>A-<b>14</b>D</figref> show a device <b>1400</b> that can include a central housing portion <b>1430</b> with one or more finger wells <b>1410</b>. The central housing portion <b>1430</b> can be an area of the device <b>1400</b> in which hardware components are stored. The central housing portion <b>1430</b> can include a single sensor or hardware unit or multiple sensor or hardware units. For example, the device <b>1400</b> can include a single unit with multiple sensors and their associated hardware. Additionally or alternatively, the device <b>1400</b> can include multiple units that can each contain one or more sensors and/or hardware components.

0069As illustrated in <figref idref="DRAWINGS">FIGS. <b>14</b>A and <b>14</b>C</figref>, the device <b>1400</b> can include one or more finger wells <b>1410</b>. A finger well <b>1410</b> can include an opening for receiving a finger or other tissue site for measurement by a sensor within the device <b>1400</b>. A finger well <b>1410</b> can be wide enough and deep enough to comfortably receive a finger of a patient. The finger well <b>1410</b> can be narrow enough so as to not allow for excessive finger movement within the device <b>1400</b>. The finger well <b>1410</b> can provide a guide for a patient to insert their finger so as to guide a desired measurement site (for example, on the finger) towards a sensor <b>1450</b> within the device <b>1400</b>.

0070As illustrated in <figref idref="DRAWINGS">FIG. <b>14</b>D</figref>, the device <b>1400</b> can include a port <b>1460</b>. The port <b>1460</b> can be capable of providing power to the device (e.g. through direct power or through battery charging), transmitting information to or from the device, or any other suitable purpose that may use an electrical connection. Additionally or alternatively, the device <b>1400</b> may wirelessly receive power or may wirelessly communicate information to or from the device.

0071<figref idref="DRAWINGS">FIGS. <b>15</b>A and <b>15</b>B</figref> show a device <b>1500</b> that can include a central housing portion <b>1530</b> with one or more finger wells <b>1510</b>. The central housing portion <b>1530</b> can be an area of the device <b>1400</b> in which hardware components are stored. The central housing portion <b>1530</b> can include a single sensor or hardware unit or multiple sensor or hardware units. For example, the device <b>1500</b> can include a single unit with multiple sensors and their associated hardware. Additionally or alternatively, the device <b>1500</b> can include multiple units that can each contain one or more sensors and/or hardware components.

0072The device <b>1500</b> can include one or more finger wells <b>1510</b>. The finger wells can be in a finger placement component <b>1540</b> adjacent to a central housing portion <b>1530</b> of the device <b>1500</b>. A finger well <b>1510</b> can include an opening for receiving a finger or other tissue site for measurement by a sensor. The sensor can be placed within the finger placement component <b>1540</b> or at another location adjacent to the finger well <b>1510</b>. A finger well <b>1510</b> can be wide enough and deep enough to comfortably receive a finger of a patient. The finger well <b>1510</b> can be narrow enough so as to not allow for excessive finger movement within the device <b>1500</b>. The finger well <b>1510</b> can provide a guide for a patient to insert their finger so as to guide a desired measurement site (for example, on a finger) towards a sensor (not shown) that can be part of the device <b>1500</b>.

0073The device <b>1500</b> can include a port <b>1520</b>. The port <b>1520</b> can be capable of providing power to the device (e.g. through direct power or through battery charging), transmitting information to or from the device, or any other suitable purpose that may use an electrical connection. Additionally or alternatively, the device <b>1500</b> may wirelessly receive power or may wirelessly communicate information to or from the device.

0000Example Sensor Pressure Components

0074<figref idref="DRAWINGS">FIGS. <b>16</b>A-<b>16</b>C</figref> show examples of sensor pressure components that can be used as part of a device <b>1600</b>. A device <b>1600</b> can use one or more components to press or push the tissue site towards the sensor or the sensor towards the measurement site. For example, as illustrated in <figref idref="DRAWINGS">FIG. <b>16</b>A</figref>, a device <b>1600</b> can include a sensor component <b>1680</b>. The sensor component <b>1680</b> can include a sensor or sensor housing (not shown) and a spring system <b>1640</b>. The spring system <b>1640</b> can exert a force against a sensor or sensor housing that can push the sensor towards a measurement site (for example, a portion of the finger <b>1610</b>). The device <b>1600</b> may or may not include an activation component <b>1650</b>. The activation component <b>1650</b> can be a pressure sensitive device, such as a button or spring. The activation component <b>1650</b> can be activated by applied pressure (for example, by a finger <b>1610</b>). When activated, the activation component <b>1650</b> can cause the spring system <b>1640</b> to push the sensor towards the measurement site.

0075As illustrated in <figref idref="DRAWINGS">FIG. <b>16</b>B</figref>, a device <b>1600</b> can include a sensor component <b>1690</b> and a hinge component <b>1670</b>. The sensor component <b>1690</b> can include a sensor or sensor housing <b>1692</b> and may be able move with respect to a central housing component <b>1620</b>. For example, the sensor housing component can operate to clamp onto a finger <b>1610</b> when pressure is exerted onto an activation component <b>1660</b>. The sensor housing component can clamp onto the finger <b>1610</b> by pivoting around the hinge component <b>1670</b>. The hinge component <b>1670</b> can include a spring loaded hinge. The activation component <b>1660</b> can be a pressure sensitive device, such as a button or spring. The activation component <b>1660</b> can be activated by applied pressure (for example, by a finger <b>1610</b>).

0076As illustrated in <figref idref="DRAWINGS">FIG. <b>16</b>C</figref>, the device <b>1600</b> can include a sensor <b>1650</b> within the device <b>1600</b>. The sensor <b>1698</b> can be adjacent to the finger <b>1610</b> when placed into the device <b>1600</b> so as to measure at the tissue site. The device <b>1600</b> can have a hinged rest <b>1694</b> for the finger <b>1610</b>. The hinged rest <b>1694</b> can approximately conform to the shape of the finger. The hinged rest can be connected to a spring loaded hinge <b>1696</b>. When a finger <b>1610</b> is placed into the device <b>1600</b>, the spring loaded hinge <b>1696</b> can push the hinged rest <b>1694</b> towards a sensor or support <b>1698</b>.

0077With continued reference to <figref idref="DRAWINGS">FIG. <b>16</b>C</figref>, a device <b>1600</b> can include one or more alignment structures <b>1682</b>. The alignment structure <b>1682</b> can be flexible so as to approximately conform to the shape of a finger <b>1610</b> during use. For example, the alignment structure <b>1682</b> can be a silicone alignment lens. The silicone alignment lens can be capable of transmitting light or radiation from the sensor towards the finger <b>1610</b>. The silicone alignment lens can be flexible so as to approximately conform to the shape of the finger <b>1610</b>. The shape may be imposed while the lens or other structure is under pressure or may have a predetermined shape.

Terminology

0078Many other variations than those described herein will be apparent from this disclosure. For example, depending on the embodiment, certain acts, events, or functions of any of the steps described herein can be performed in a different sequence, can be added, merged, or left out altogether (e.g., not all described acts or events are necessary for the practice of the algorithms). Moreover, in certain embodiments, acts or events can be performed concurrently. In addition, different tasks or processes can be performed by different machines and/or computing systems that can function together.

0079Conditional language used herein, such as, among others, “can,” “might,” “may,” “e.g.,” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and/or states. Thus, such conditional language is not generally intended to imply that features, elements and/or states are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without author input or prompting, whether these features, elements and/or states are included or are to be performed in any particular embodiment. The terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations, and so forth. Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list. Further, the term “each,” as used herein, in addition to having its ordinary meaning, can mean any subset of a set of elements to which the term “each” is applied.

0080Disjunctive language such as the phrase “at least one of X, Y and Z,” unless specifically stated otherwise, is to be understood with the context as used in general to convey that an item, term, etc. may be either X, Y, or Z, or a combination thereof. Thus, such conjunctive language is not generally intended to imply that certain embodiments require at least one of X, at least one of Y and at least one of Z to each be present.

0081Unless otherwise explicitly stated, articles such as “a” or “an” should generally be interpreted to include one or more described items. Accordingly, phrases such as “a device configured to” are intended to include one or more recited devices. Such one or more recited devices can also be collectively configured to carry out the stated recitations.

0082While the above detailed description has shown, described, and pointed out novel features as applied to various embodiments, it will be understood that various omissions, substitutions, and changes in the form and details of the apparatus or method illustrated can be made without departing from the spirit of the disclosure. As will be recognized, certain embodiments of the inventions described herein can be embodied within a form that does not provide all of the features and benefits set forth herein, as some features can be used or practiced separately from others.